Foxconn 915G Manual page 16

5. Close the load plate, and slightly push down the tongue side.
6. Lower the lever and lock it to the load plate, then the CPU is locked completely.
Note :
Excessive temperatures will severely damage the CPU and
system. Therefore, you should install CPU cooling fan and make
sure that the cooling fan works normally at all times in order to
prevent overheating and damaging to the CPU. Please refer to your
CPU fan user guide to install it properly.
Chapter 2 Installation Instructions
9